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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 11:22pm On Jan 18, 2019 |
I need a good and quality 4.5m dish urgently, location is akure 08060764846 |
Satellite TV Technology / Re: FTA Live Football Matches Announcement Thread by IRAPADA(m): 10:00pm On Dec 10, 2018 |
Jastydray:may be one chance you enter |
Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 9:01pm On Nov 17, 2018 |
ab221:whick ku band do you want to track |
Jobs/Vacancies / Re: Please Help Me Confirm If This Invite Is Real Or Not by IRAPADA(m): 10:14am On Nov 14, 2018 |
Randy100:stop being stupid for once |
Politics / Re: Live Broadcast: Nnamdi Kanu's World Press Broadcast From Jerusalem by IRAPADA(m): 6:14pm On Oct 21, 2018 |
This kanu sounds drunk to me |
NYSC / Re: A Nairalander CDS Group Prison's and School Visitation In Kontagora, Niger State by IRAPADA(m): 11:27pm On Oct 01, 2018 |
That's the local government I did my nysc in 2010. I served at federal College of education kontagora, the weather was hell during dry season in that place |
Politics / Re: MKO Abiola & Obasanjo In Secondary School (Throwback Photo) by IRAPADA(m): 1:10pm On Sep 28, 2018 |
Some where in daura in the same year 2 Likes
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Politics / Re: Osun 2018 Governorship Election Results: INEC Official Announcement Updates by IRAPADA(m): 11:53am On Sep 23, 2018 |
This election will be declared inclusive cos void vote in bigger than winning margin |
Politics / Re: Osun 2018 Governorship Election Results: INEC Official Announcement Updates by IRAPADA(m): 11:52am On Sep 23, 2018 |
This election will be declared inclusive cos invalid vote in bigger than winning margin |
Politics / Re: BREAKING: Buhari Sacks Seiyefa, Acting DG DSS by IRAPADA(m): 8:25pm On Sep 13, 2018 |
Good development, 2019 is a most win for apc. Buhari don't want to gamble with a southerner as head of dss |
Pets / Re: Dog Eats Lady's Phd Certificate (Photos) by IRAPADA(m): 3:49pm On Aug 29, 2018 |
judecares1:stop this kid behavior, is not funny |
Politics / Re: Rabiu Kwankwaso's Presidential Declaration In Abuja (Photos) by IRAPADA(m): 2:39pm On Aug 29, 2018 |
christejames:crowd pulling is not yardstick for winning elections my friend, alot of 'mogbo moya' are part of those crowds. 11 Likes |
Politics / Re: Rabiu Kwankwaso's Presidential Declaration In Abuja (Photos) by IRAPADA(m): 2:32pm On Aug 29, 2018 |
Kwankwaso pull this kind of crowd in daura kastina state, and what happen at the polls, pdp couldn't even get 30% of the vote 27 Likes 4 Shares |
Politics / Re: Kwankwaso: I Regret Supporting Buhari Against Jonathan by IRAPADA(m): 9:00pm On Aug 27, 2018 |
Time to brainwash south east and south south deligates and electorate, after pdp pry and you loose then gej and buhari will then become Nigeria problems 10 Likes 1 Share |
Politics / Re: Kwankwaso: I Regret Supporting Buhari Against Jonathan by IRAPADA(m): 8:57pm On Aug 27, 2018 |
Time to brainwash south east and south south deligates and electorate 75 Likes 8 Shares |
Politics / Buhari Chair Controversy by IRAPADA(m): 8:18am On Aug 25, 2018 |
This is the back view of the controversial chair everybody is talking about
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Politics / Re: President Buhari Chilling In His Compound In Daura, Give The Picture A Caption by IRAPADA(m): 7:58am On Aug 25, 2018 |
Bhatia chair
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 11:55am On Aug 22, 2018 |
rmoloruntoba:short neck strong lnb |
Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 10:40am On Aug 16, 2018 |
obyback:
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 10:36am On Aug 16, 2018 |
Mfumu:WHAT DOES THEORY SAY?According to the actual measurements on the dish:AB = 270 Cm = distance across dish from top to bottom (HEIGHT)Width = 250CmP = 22 Cm= maximum perpendicular distance from the chord to the dish (or DEPTH).BF = ? = distance of bottom of dish to focal point [i.e., size of LNB arm]AF = ? = distance of top of dish to focal pointAccording to our mathematicsteacher:Focal length (LNB arm) = (Width x Width x Width) / (16 x Depth x Height)In the case of the off-set dish we had:Focal length = (250 x 250 x 250) / (16 x 22 x 270) = 164.4 CmThe offset angle theta is calculated as:Angle theta = (1/2) x asin(8P/AB) = 0.5 x asin[(8 x 22) / 270]= 20.68 DegreesAlso:Offset Angle = 20.68 Degrees= asin [(AF - BF) / AB]We need to calculate the distance AF = distance of top of dish to focal point:20.68 Degrees = asin [(AF - BF)/ AB] = asin [(AF 165)/270Making AF the subject of the formula we got: AF = 260.35CmPUTTING THE MATHEMATICS TO PRACTICAL USE:Now it was time to readjust the dish to reflect the above measurements namely:AF = 260.35 Cm;BF = 165 Cm = Length of LNB armBefore today, we had used: AF= 266Cm; BF = 156.5CmFirst we set loose the existing LNB support arms and LNB arm itself.Next: we adjusted the LNB arm to 165Cm.Next, to adjust the dish to the top length AF=260Cm correctly, we first measured and marked with masking tape, a 260Cm piece of straight Coaxial cable (you may use a rope too). We then tied one end to the top of the dish, and the other end of 260Cm to the tip of the newly-adjusted LNB arm (165Cm).With these two lengths (AF and BF) settled, the correct length of LNB support arms tosuspend the AF and BF lengths correctly as given above was automatic. And this adjusted to 193.5Cm !This means that although theoretically, mathematics gives us the offset angle to be20.68 Degrees, there is no need to measure this angle onthe dish practically. Just get AF and BF and ensure the LNBarms supporting this are equalin length (193.5Cm)! |
Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 9:17am On Aug 16, 2018 |
best lnb holder for the offset dish
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 9:12am On Aug 16, 2018 |
blue parameters for 1.8m dish,yellow for 1.3m dish, the side arms is 1600mm not 1830mm,all others are correct |
Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 9:09am On Aug 16, 2018 |
Mfumu:
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 7:42pm On Aug 15, 2018 |
Freshclean777:football channels, I tried hotbird and 9e I got over 200 channels on both sat 1 Like |
Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 3:37pm On Aug 15, 2018 |
pic2 1 Like
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 3:34pm On Aug 15, 2018 |
pic
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Satellite TV Technology / Re: Free To Air Satellite Tv General Thread by IRAPADA(m): 3:28pm On Aug 15, 2018 |
I bought this 1.8m offset dish without arms and stands, I did the arms calculation and reconstruction and the results on both c and Ku band came out fantastic |
Politics / Re: “I remain a member of APC” Sen Tejuoso denounces reports stating he joined PDP by IRAPADA(m): 1:36pm On Jul 26, 2018 |
neolboy:coward? because he is not anti buhari like you 11 Likes |
Politics / Re: Senator Dino Melaye Kidnapped By Unknown Gunmen by IRAPADA(m): 11:21am On Jul 26, 2018 |
another comedy skit from dino to deceived Igbos and fools who choose to. believe him 8 Likes 1 Share |
Politics / Re: Senator Dino Melaye Kidnapped By Unknown Gunmen by IRAPADA(m): 11:15am On Jul 26, 2018 |
Dino doing everything possible to get sympathy from people and make bellow look bad 10 Likes 1 Share |
Politics / Re: Senator Dino Melaye Kidnapped By Unknown Gunmen by IRAPADA(m): 11:12am On Jul 26, 2018 |
only fools and Igbos will believe this 10 Likes 1 Share |
Politics / Re: BREAKING: Senator Dino Melaye Kidnapped By Unknown Gunmen by IRAPADA(m): 11:10am On Jul 26, 2018 |
another comedy skit from dino to gain Igbos sympathy |
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